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Lifan 620 - Intake Manifold Absolute Pressure Temperature Sensor

Lifan 620
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3. Shock sensor (see Table 1-5)
Table 1-5
Diagnostic Trouble Code (DTC) Trouble Location or Type
P0325 Shock sensor 1 circuit trouble
S/N Operation Test Results Actions
1 Turn off the ignition switch, and stop the engine. Next step
Yes Next step
2
Disconnect the shock sensor from the harness.
Measure the resistance between pin (1) and pin (2)
with a multimeter. Is the resistance greater than 1M
No Renew sensor
Yes Next step
3
Gently knock around the shock sensor with a small
hammer. Check for AC signal output between pin (1)
and pin (2) with a multimeter.
No Replace sensor
4
Turn on the ignition switch, and do not start the
engine.
Next step
Yes Repair or replace harness
5
Connect an adapter between the ECU and the
harness. Check for open or short circuit between pin
J1-05, J1-69 of the ECU and the pin (1), (2) of the
sensor with a multimeter.
No Replace ECU
4. Intake manifold absolute pressure temperature sensor (see Table 1-6)
Table 1-6
Diagnostic Trouble Code (DTC) Trouble Location or Type
P0107 Intake manifold absolute pressure/atmospheric pressure circuit input low
P0108 Intake manifold absolute pressure/atmospheric pressure circuit input high
S/N Operation Test Results Actions
1 Ignition switch in position ON. Next step
Yes 4
2
Disconnect the intake manifold absolute
pressure/intake air temperature sensor from the
harness. Measure the voltage between pin (1) and pin
(3) with a multimeter. Is the voltage about 5V?
No Next step
Yes Repair or replace harness
3
Connect an adapter between the ECU and the
harness. Check for open or short circuit between pin
J1-21, J1-27, J1-42 of the ECU and the pin (1), (3), (4)
of the sensor with a multimeter.
No Next step
4
Turn on the ignition switch, and do not start the
engine.
Next step
Yes Replace ECU
5
In neutral position, start the engine, and keep idle
speed. Step on the accelerator. Through the adapter,
measure the voltage between pin (4) and pin (1) with
a multimeter, namely between pin J1-42 and pin J1-21
of the ECU. Does the voltage gradually increase to
4V?
No
Replace ECU
Replace sensor
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